Taking a cue from Lemur's image above this month, which I think perfectly captures the idea and benefit of creating a master study. And Sargent is a good fit for Sijun because of his loose, painterly style.

New and old accepted, 2D and 3D, digital and not, finished or sketched. Feel free to cross-post images into other relevant threads, and to post older images that fit the theme. The more images the better.